Has any one done this? My go to gun for prairie dog shooting is my 22-250 and my edgun but I traded my 22-250 for my brother's 243. I'm in the process of building a long range shooting rig for the 243 so all I have for now is my edgun, my 223, and 308. I have my 308 spot on and know my bullet drop out to 1000 yards. Anything under 500 is dead with that gun. I've been developing a load for the 223 for the past several weeks and have the perfect recipe but my max distance for this gun is about 200 and maybe 300 in perfect conditions. Going out prairie dog shooting tomorrow and I know I will taking some 300 plus yard shots. The reason I want to bring the 308 but is this over kill?